American Dryer Corp. Extended Side Panels AD-120ES III - Manual (Page 32)

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2. Technical Gas Data
a. Gas Specifications
b. Gas Connections
Inlet connection -------------- 1” N.P.T.
Inlet supply size -------------- 1” N.P.T. (minimum)
Btu/hr input (per dryer) ----- 375,000 (94,500 kcal/hr)
1) Natural Gas
Regulation is controlled by the dryer’s gas valve’s internal regulator. Incoming supply pressure
must be consistent between a minimum of 6.0 inches (14.92 mb) and a maximum of 12.0 inches
(29.9 mb) water column (W.C.) pressure.
2) Liquid Propane (L.P.) Gas
Dryers made for use with L.P. gas have the gas valve’s internal pressure regulator blocked open so
that the gas pressure must be regulated upstream of the dryer. The pressure measured at each
gas valve pressure tap must be a consistent 10.5 inches (26.1 mb) water column. There is no
regulator or regulation provided in an L.P. dryer. The water column pressure must be regulated at
the source (L.P. tank) or an external regulator must be added to each dryer.
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ............................ #4 = 0.2090” (5.3086 mm).
Liquid Propane Gas ............... #30 = 0.1285” (3.2639 mm).
TYPE OF GAS Liquid Propane
(L.P.)
Conversion
Kit
Part Number
ADC
MODEL
NUMBER
BTU
Per Hour
Rating
kcal/hr
Rating
Natural Liquid Propane (L.P.)
Qty. D.M.S.*
Part
Number
Qty. D.M.S.*
Part
Number
ADG-120ES III 375,000 94,500 3 #4 140832 3 #30 140819 880886
Shaded area is stated in metric equivalent
TYPE OF GAS
NATURAL LIQUID PROPANE
Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb
In-Line Pressure 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb
Shaded areas are stated in metric equivalents
* Measured at outlet side of gas valve pressure tap when gas valve is on.